Short, low profile design, they measure 2.8 tall. Features a black coated finish with the Edelbrock logo. Made of stamped steel. They accept all emissions equipment, including PCV valve. Both valve covers have internal breather baffles. Fits 283, 302, 327, 350, 400 Chevy small block engines. TECH NOTE: Will not clear roller rockers. TECH NOTE: Will not fit 1987 and newer center bolt cylinder heads. This cover kit is for the traditional side bolt mounting. 2 black low profile steel valve covers. 2 black breathers that pull out of the covers for easy oil fill. Then simply push back in to replace them on the cover. Rubber grommet for the breather and PCV valve holes are included. ARP black oxide coated valve cover bolts with hex head and washers. Ultra Seal valve cover gaskets. They measure 3/16 thick and are manufactured from high density cork/rubber blend gasket material. Creates a positive seal by controlled swelling of the gasket material when exposed to hot engine oil. A black latex rubber coating is applied to outside of the gasket to help seal minor flange irregularities and eliminate the possiblity of oil leakage. Only Spider Performance Automotive makes it this easy for you to detail you engine!